/*

* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:      File tranfer session implementation

*

*/

#ifndef C_UPNPFILEDOWNLOADSESSIONIMPL_H

#define C_UPNPFILEDOWNLOADSESSIONIMPL_H

// EXTERNAL INCLUDES

#include <e32base.h>

// INTERNAL INCLUDES

#include "upnpfiledownloadsession.h"

#include "upnpavdeviceobserver.h"

#include "tupnpfiletransferevent.h"

// FORWARD DECLARATIONS

class RUPnPAVControllerClient;

class CUpnpAVDevice;

class MUPnPFileTransferSessionObserver;

// CLASS DECLARATION

/**

 *  AV Controller file download session clint-side implementation.

 *

 *  @lib upnpavcontrollerclient.lib

 *  @since S60 v3.2

 */

NONSHARABLE_CLASS( CUPnPFileDownloadSessionImpl ) :

                                        public CActive, 

                                        public MUPnPFileDownloadSession,

                                        public MUPnPAVDeviceObserver

    {

public:

    /**

     * 1st phase construct

     *

     * @param aServer a handle to AV Controller server

     * @param aDevice target device

     * @return new instance

     */

    static CUPnPFileDownloadSessionImpl* NewL(

        RUPnPAVControllerClient& aServer, const CUpnpAVDevice& aDevice );

    /**

     * Destructor

     */

    ~CUPnPFileDownloadSessionImpl();

private:

    /**

     * Private constructor

     *

     * @param aServer a handle to AV Controller server

     */

    CUPnPFileDownloadSessionImpl( RUPnPAVControllerClient& aServer );

    /**

     * 2nd phase constructor

     */

    void ConstructL();

private: // From CActive

    /**

     * See e32base.h

     */        

    void RunL();

    /**

     * See e32base.h

     */        

    void DoCancel();

    /**

     * See e32base.h

     */        

    TInt RunError( TInt aError );         

public: // From MUPnPFileUploadSession

    /**

     * See upnpfiledownloadsession.h

     */

    void StartDownloadL( const CUpnpItem& aItem, TInt aKey );

    /**

     * See upnpfiledownloadsession.h

     */

    void StartDownloadL( const CUpnpElement& aResElement,

        const CUpnpItem& aItem, RFile& aFile, TInt aKey );

public: // From MUPnPFileTransferSession

    /**

     * See upnpfiletransfersession.h

     */

    void SetObserver( MUPnPFileTransferSessionObserver& aObserver );

    /**

     * See upnpfiletransfersession.h

     */

    void RemoveObserver();

    /**

     * See upnpfiletransfersession.h

     */

    MUPnPFileTransferSessionObserver* Observer() const;   

    /**

     * See upnpfiletransfersession.h

     */

    void StartTrackingProgressL( TInt aKey );

    /**

     * See upnpfiletransfersession.h

     */

    void CancelTransfer( TInt aKey );

    /**

     * See upnpfiletransfersession.h

     */

    void CancelAllTransfers();

public: // From MUPnPAVDeviceObserver

    /**

     * See upnpavdeviceobserver.h

     */

    void UPnPDeviceDiscovered( const CUpnpAVDevice& aDevice );

    /**

     * See upnpavdeviceobserver.h

     */

    void UPnPDeviceDisappeared( const CUpnpAVDevice& aDevice );

    /**

     * See upnpavdeviceobserver.h

     */

    void WLANConnectionLost();

public: // New methods

    /**

     * Returns device

     *

     * @return device

     */        

    const CUpnpAVDevice& Device() const;

private:

    /**

     * Reset

     */        

    void ResetL();

private:

    /**

     * Filetransfer session observer

     *

     * Not owned

     */        

    MUPnPFileTransferSessionObserver*   iObserver;

    /**

     * AV Controller client handle

     */        

    RUPnPAVControllerClient&            iServer;

    /**

     * Target device

     *

     * Owned

     */        

    CUpnpAVDevice*                      iDevice;

    /**

     * Buffer to pass data to the server process

     *

     * Owned

     */        

    HBufC8*                             iBuffer;

    /**

     * Modifiable pointer to the data buffer

     */        

    TPtr8                               iBufferPtr;

    /**

     * Buffer to pass data to the server process

     *

     * Owned

     */        

    HBufC*                              iBuffer2;

    /**

     * Modifiable pointer to the data buffer

     */        

    TPtr                                iBufferPtr2;

    /**

     * Flag to store the state of WLAN

     */        

    TBool                               iAlive;

    /**

     * Filetransfer event. Used to receive events from the server process

     */        

    TUpnpFileTransferEvent              iEvent;           

    /**

     * Package buffer used in client-server comms

     */        

    TPckg<TUpnpFileTransferEvent>       iEventPkg;

    };

#endif // C_UPNPFILEDOWNLOADSESSIONIMPL_H

// End of file